| Wasa | |
| Native Name: | Kata ya Wasa |
| Native Name Lang: | sw |
| Settlement Type: | Ward |
| Pushpin Map: | Tanzania#Africa |
| Pushpin Relief: | yes |
| Coordinates: | -8.1167°N 47°W |
| Subdivision Type: | Country |
| Subdivision Type1: | Region |
| Subdivision Name1: | Iringa Region |
| Subdivision Type2: | District |
| Subdivision Name2: | Iringa Rural |
| Subdivision Type3: | Ward |
| Subdivision Name3: | Wasa |
| Population As Of: | 2016 |
| Population Total: | 11086 |
| Postal Code: | 51214 |
| Postal Code Type: | Postcode |
| Timezone: | EAT |
| Utc Offset: | +3 |
Wasa is an administrative ward in the Iringa Rural district of the Iringa Region of Tanzania. In 2016 the Tanzania National Bureau of Statistics report there were 11,086 people in the ward, from 10,595 in 2012.
The ward has 7 villages and 28 vitongoji.